Dental spittoon



` DENTAL sPTTool. No. 274,105.

Patented Mar. 20,1883.`

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DENTAL SPITTOON.

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DENTAL SPITTOON.

. Patented M'a.1.20,1883.

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y UNITED, STATES PATENT @Ei-TCEo y ELLIS B. BLISS, OF WASHINGTON,DISTRICT OFICOLUMBIA.

DENTAL SPITTOON.

SPECIFICATION forming' part `of Letters Patent No. 274,105, dated March20, 1883;

` Application filed January 8, 18H83. (No model.)

To all whom it may concern:

Be it known that I, ELLIS B. BLISS, a citizen of the United States,residing at Washington, in the District of Columbia, have inventedcertain new and useful Improvements in Dental Spittoons; and I do herebydeclare the following tombe a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the saine, reference being had to theaccompanying drawings, and to letters or figures of 'reference markedthereon, which forni a part of'this specification.

This invention relates to that class of dental spittoons which havepipes for the supply and discharge of water, and are adapted to beadjusted in position to conform to the varying location ofthe patientshead as the chair-back` is raised or lowered or the chair turned on itspivot in the usual manner. Sometimes these spittoons have been attachedto the chairitself, in which case they are necessarily removed therewithwhenever the chair is removed from its place, and have no independentsupport. Moreover, the turning of the chair will not vary the positionof the spittoon with respect to the patients head, a separate motionbeing required to elfect this latter adjustment. In other cases thesespittoons have been supported on their discharge-pipes inde-` pendentlyof the chair, said pipes being provided with two universal joints, onenear the iioor and one near the spittoon. By means of the former thespittoon may be raised and lowered and turned in any direction, and bymeans of the upper joint the spittoon is made to take a horizontalposition wherever thus placed. It is obvious, however, that thisconstruction is very costly, and, moreover, requires at least twomotions to adjust the spittoon ready for use. To avoid these objections,l make use of the construction hereinafter -set forth and claimed.

My inventonconsists, first, in a dental spittoon, in combination with'abent snpportpivoted for vhorizontal axial adjustment and independentofthe dentists chair; secondly, in a dental spittoon, in combinationwith a support consisting of 4a water-supply tube and a discharge-tube,arranged the one Within the other and independent of the dentists chair;

thirdly, in a dental spittocn, in" combination with a support consistingof a water-supply tube and a discharge-tube anda bearing in which theyhave axial motion, said tubes being bent substantially as and for thepurpose hereinafter set forth; fonrthly, in a dental spittoon, incombination with a water-sapply tube,

a discharge-tube exterior thereto, a bushing turning with said tubes, abearing in which saidbnshing turns, and connections respectively betweensaid discharge pipe or tube and the drain-pipe and said water-supplytube or pipe andthe water-supply system of the building, substantiallyas hereinafter set forth; fthly, a dental spittoon and its ywater-supplypipe and discharge-pipe, in combination with a bearing in which theyturn, and an exterior supply-pipe and drainpipe,`said bearing beingadapted to allow the passage of water to and from the spittoon throughsaid supply-pipe and discharge-pipe, substantially as hereinafter setforth; sixthly, a bearing having two annular grooves in its inner faceand passages leading from said grooves to the exterior of 7 5 saidbearing, in combination with tubes leading respectively to and from thespittoon and provided with a bushing and suitable openings communicatingwith said grooves, substantially as hereinafter set forth; seventhlyin aspittoou and supply andilischarge tubes which support it, a colloidalbushing forsaid tubes, said bushing being closed at the `bottom andprovided with a screw-threaded stud, iu cornbination with a bearingadapted to receive said bushing and a nut which turns on said stud totighten said bushing in its seat, substantially as hereinafterset forth;eighthly, in a dental spittoon provided with la tumblerholder which hasan outlet from its bottom,for the purpose hereinafter set forth;ninthly, in a dental* spittoon provided with a tumblerholder which has atube extending from its bottom and communicating with the interior l ofthe spittoon, substantially as and for Athe purpose hereinafter setforth and claimed; teuthly, in a dental spittoon provided with atumbler-holderhaving a tubular support which acts as a drain oroutlet-pipe for said tumblerholder, substantially as hereinafter setforth '10:

and claimed. 4 i

In the accompanying drawings, Figure 1 Q seamos represents a perspectiveview of a dentists chair tilted back in the usual position foroperation, and one of rny improved dental spittoons arranged inproximity thereto and ready for use. Fig. 2 represents an enlargedvertical section through vthe spittoon proper and the upper ends ot' thepipes. Fig. 3 represents a vertical section through the outer ordischarge pipe, its bearings and connections, thesupply-pipe beingunsectioned except at itslower end, and the upper ends of both pipes notshown. Fig. 4 represents a plan view of the spittoon proper. Fig. 5represents a vertical section through the devices for allowing supplyand discharge of water above the door.

In the accompanying drawings the same C letters indicate the sinneparts.

A designates a dental-chair, supported in the usual way on legs a, andhaving the ordinary devices for raising and lowering, tilting andturningit. Any form ofchair may be used, as this forms no part of' myinvention. It should be arranged so that the treadle a will be on therightot' the spittoon-support, and the rear left. leg of the chair onthe other side of said spittoon-support. This support consists of anouter pipe or tube, B, and au inner pipe or tube, C,`both extendingvertically upward a short distance from the door, and then bendinglaterally in an upward curve, on the upper end of which is mounted aspittoon, D. The inner pipe, C, receives water at its lower end from apipe, c, forming part ot' the water-supply system of the house, theconnection being made by means ot' a tlexible tube, E, and suitableeouplings, as shown in Fig. 3, when the pipes B C are extended below thefloor, the couplings of course protruding through the outer pipe, B, forthe attachment ot' said flexible tube. The influx of water is controlledby a valve, F, the stem whereof rises through the tioor and isl providedwith the usual handwheel, f, for convenience of operation. The upper endof pipe C is firmly attached to the bottom of spittoon I). Itcommunicates ter! 'initially with the usual rose or sprayer, G,

whereby the'inside Aot' the spittoon is washed, and through a sideopening with the small tubular fixture It, leading` to the elevatedfaucets H, which supply water at will to the cups or tumblers forrinsing the patients mouth. The bottom of the spittoon is provided withopenings d, which allow the water supplied through pipes U to dow downinto the discharge-pipe B, and thence through gooseneck stench-trap B tothe waste-pipe leading to the sewer.

The pipe B is preferably o'l brass, plated with nickel or other metalsufficiently hard to bear polish and resist wear, and consists of twosections joined at the bend by a unionpiece, b', ot' the ordinary sort.The pipe C consists preferably for the most part ot' lead tubing joinedto brass pieces at the top or bottom; but I do not wish to be understoodas restricting myself to any particular material or number of' parts, orshape or method of atturns in a cylindrical bearing, J, fixed in thedoor, and is provided at its top with a tiange, t', which rests on thetop ot' said hearing and prevents the pipe B from slipping down throughthe same. The eXible tubing E is of such length as tointerpose noobstacle to the turning of said tubes `B and C, and they acc0rd inglyhave free pivotal motion on the aXis oi" the vertical lower parts ofsaid tubes. The upper parts of said tubes, however, being bentlaterally, will necessarily present the spittoon to the patient at aneareror more remote point or a dit'erent angle according to the degreeof motion given. As there is no tilting of the tubularsupport,thespittoon inevitably retains at all times its horizontal position,requiring no additional adjustment. When the chair is turned upon itspivot it may be made to turn the spittoon (by contact with the latter orits support) until the relative positions ofthe patients head and thespittoon are accurately adjusted to secure his convenience. .Thus thespittoon is properly located in Fig. l, so long as the patients head isin the position indicated by the head-rest, since by slightly rising andturning he can easily rinse his mouth into it. By turning the chair tothe left the spittoon will be struck or pressed against by the side ofthe back of' said chair, and the lient supporting-tube of said spittoonwill be caused toturn upon its pivot. This will obviously cause the saidspittoon to take a more forward position with respect to the patientshead while he is in a recumbent attitude, and thus arrange itself to beconveniently used when the raising of the patients body into a moreupright attitude has brought. his head tlrther forward. This cannot bedone by turning the chair when the spittoon-support is attached thereto,since they have then an aXis in common; nor can it be done when thetilting form of spittoon-supportis used. In both these latter cases atleast one additional operation or motion is required, which myimprovement makes unnecessary. v

In very many cases adentists office is above a vestibule or some hall orapartment, into which the pipes forsupplying and discharging watercannot well be introduced. of the floor and ceiling is also undesirable.To avoid these objections I often malte use ot' the devicesshownlnFig.5. In thlsijgure'the bearing Jis shown entirely above the door, towhich it is bolted by a bottom flange, j. 0n the inner face of thisbearing` .are formed two annular groovesLJ and J2, one being near thetop and the other near the bottom thereof` for a purl pose to behereinafter explained. Said inner face is conoi'dal, tapering downward,and the outer face of bushing I is'made to tit it. This bushingis closedat the bottom below the lower ICO IIO

IISl

The cutting end of the outer pipe, B. A series of holes, 12,

L, extending from upper groove, J, to the' outside of said bearing, andalso with a similar passage, L, extending from the lower groove, J2, tothe outside of said bearin g. The pipe c, forming part ofthewater-supply systein of the building, is screwed into the .Iirst'namedpassage, the inux ot' Water being governed, as before, by valve F. Thedrain-pipe M is connected similarly-to said bearing by screwing into thescrewtapped outer portion of passage L. Both these pipes are above thefloor and may be concealed by woodwork orin any other manner, accordingto convenience. The tubes B U and bushing I turn freely in bearing J,and whatever their position of axial adjustment the grooves Jl J2 insurea flow ot' water vfrom pipe c to pipe C, and from dischargepipe B to thedrain-pipe M.

A0n the lower end of bushing I a screwt `threaded downwardly-extendingstud, N, is

5o justment and independent of the dentists formed.

This is encircled by a washer, o, and receives a nut, O, whereby saidbushing may be tightened at will in its seat within said bearing.

. 0f course the foregoing devices may be modified in many ways, andequivalents may be substituted without departing from the spirit of myinvention.

Z designates a tumbler-holder -formed with or attached tothe spitton,and provided with a tubular support. fz, which .conducts the water thatdrips from the tumblers down into the interior of the spittoon, whenceit passes through pipe B to the drain. tiexible and independent ofthe'support; but I prefer the construction shown.

Having thus tully described my invention, what Iclaim as new, and desireto secure by Letters Patent, is t l. A dental spittoon, in combinationwith a bent support, pivoted for horizontal axial ad- 2. A dentalspittoon, in combination with a support consisting of a water-supplytube and a discharge-tube arranged'the one within the other andindependent of the dentists chair.

'Iube z may be` 3. A dental spittoon, in combination with a supportconsisting of a water-supply tube and a discharge-tube and a bearing inwhich they have axial motion, said tubes being bent substan tially asand for the purposes set forth.

4. A dental spittoon, in combination with a thereto,'a bushing turningwith said tubes, a bearing in which said bushing turns, and connectionsrespectively between said discharge pipe or tube and the drain-pipe, andsaid watersupply tube or pipe and the water-supply system ot' thebuilding, for the purposes set forth. 5. A dental spittoon and itsWater-supply pipe and discharge-pipe, incombination with a bearing inwhich they turn, and an exterior supply-pipe and drain-pipe, saidbearing being adapted to allow the passage of water to and from thespittoon through said supply-pipe and discharge-pipe, substantially asset forth. 6. The bearing J, having annular grooves J and J2 in itsinner face, and passages leading from said grooves to the exterior of'said bearing, in combination with the tubes B (l, leading to and fromthe spittoon, and provided with a bushing and suitable openingscommunicatin g with said grooves, substantially as set forth. v

7. In combination with the spittoon andthe supply and discharge tubeswhich support it, the conoidal bushing-I, closed at the bottom andprovided with a screw-threaded stud, the bearin g adapted to receivesaid bushing, and the nut which turns on said stud to tighten saidbushing in its seat, substantially as set forth.

8. A dental spittoon provided with a tumbler-holder which has an outletfrom its bottom, for the purpose vset forth.

9. A dental spittoon provided with a tum bler-holder which has a tubeextending from its bottom and communicating with the interior of thespittoon, for the purpose set forth.

l0. A dental spittoon provided with a tumbler-holder, Z, having asupport, z, which is tubular, in order to adapt it to act as a'drain oroutlet-pipe for said holder, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ELLIS B. BLISS.

Witnesses:

J oHN P. LAWRENCE, A. S.TAYLOR.

water-supply tube, a discharge-tube exterior t IOO

